Antonio montenegbo



A. MONTENEGRO.

SIGNALING APPARATUS.

(No Model.)

No. 330,723. Patented Nov. 17, 1885.

i P. J "W 3 6 p M f J E h y w 1% & w P U c iATENT FFICE.

ANTONIO MONTENEGRO," OF MADRID, SPAIN.

SIGNALING-APPARATUS.

SPECIFICATION forming part of Letters Patent No. 330,723, dated November, 17, 1885. Application filed May'28, 1885. Serial No. 166,987. g (No model.)

To all whom it may concern:

Be it known that I, ANTONIO MONTENEGRO, of Madrid, in the Kingdom of Spain, mechanical engineer, have invented new and useful Improvements in Signaling Apparatus, of which the following is a specification.

My invention relates to signaling apparatus, and has for its object to furnish an improved device of this class which shall be simple and effective in use. With these objects in view I have constructed the parts which I shall now proceed to fully describe, the particular points of novelty in which I shall specifically point out in the claim hereto appended.

In the annexed drawings, Figure 1 represents a vertical section of Fig. 2, through a b. Fig. 2 is a vertical section of Fig. 1, through c f. Fig. 3 represents a vertical section of the operator. Fig. 4 is a section through the manipulator-piston, and Fig. 5 is a section through the operator-piston.

The manipulator, Figs. 1, 2, and 4.This is a double apparatus, and consists of two counterpoising weights, A, placed at each station. In its normal position-that is, when the line is clear-it stands as shown in Fig. 1. The counter-weight A hangs by the rod B,which is provided with a hook, O, and carries at its lower extremity a piston, D, Figs. 1 and 4, the stuffing-box of which consists of a leather packingring, and which piston works inside a pumpbarrel, E, that is embedded in masonry work, and closed at its lower extremity. This pumpbarrel has laterally a branch-pipe, F, connected with a leaden pipe, H, that is fitted with a tap, G. This pipe H is full of liquid, and represents the hydraulic transmission element.

To start the manipulator working, the lower pulley must be detached from the hook O, and the counter-weight A, in its descent,will drive back the liquid contained in the pump-barrel E, and along the whole extent of the piping. As the liquid is incompressible, the movement will thus be transmitted to the operator.

The operator, Figs. 3 and 5.-H is the pipe filled with the liquid, and which, commencing at the manipulator, runs on until it becomes jointed to the pump-barrel J of the operator. Inside this pump-barrel works the piston K, having a double leather packing. The piston K is attached to the lower extremity of the rod L. When the manipulator is in operation, the

pressure exerted upon the liquid by piston D, Fig. 1, sends the piston K, Fig. 3, in an upward direction until the collar M, fixed to rod L, comes in contact with the plateN. This motion of piston K and rod L causes the disk or signal mounted on column I? to rise, thus indicating that the line is not clear.

When the disk is required to be opened again, all that need be done for the purpose is to raise the balance-weight A, Fig. 1, by means of the pulleys. So soon as piston D ceases to act upon the liquid, the weight of rod L will cause the liquid to recede in the opposite direction as far as the manipulator, when the dropping of the said rod Lwill open the disk, indicating that the line is clear.

The stroke of piston D of the manipulator is longer than that of piston K of the operator, and for the following reason: The movement of the balance-weight A is limited at its lower extremity by the bed U of plate V, against which its head T comes to rest, and at its upper extremity it is limited by the collar W, which abuts against plate V. If the travel of the balance-weight A were equal to that of rod L, the consequence would be that so soon as the head T touched the bed U the piston D would cease to act upon the liquid, and as a result the rod L would descend from the effect of its own weight if there were any leakage going on in the pipes. This would cause the disk to open up independently of the manipulator; but, if the stroke of the piston be made of greater length, the liquid will be acted upon without interruption, even thougha leakage have occurred, and the disk will keep closed.

In case of loss of liquid from leakage in the pipes such loss is made good again, automatically, in the following manner,viz: The piston D of the manipulator, Figs. l and 4, has only one leather packing-ring,whereas piston K of the operator, Figs. 3 and 5, is provided with two leather packings,which are placed in opposite directions, besides which, at the back of the pump-barrel E, there is a reservoir, X, filled with liquid and communicating with the upper portion of the said pump-barrel by means of a pipe, S. The balance-weight A, being raised to open the disk if a leakage take place, the piston D, after completing the upstroke required to' open the disk and continuing to rise, owing to the strain upon the pulley-ropes, will produce suction in the pipes. Now, since no outer air can penetrate past piston K, owing to its double packing, the single packing of piston D will allow the water above it to pass into the pump-barrel, and the pipes will fill again.

The cocks G and G are provided for the purpose of enabling one to ascertain whether the leakage is taking place in the manipulator, in the pipes, or in the operator. If in the manipulator, then the cock G of the manipulator should be shut, and if now the piston D still continue to descend it will show that the 1eakage is taking place at the packing-ring of this piston. If there be nothing observed, this same cock should be opened while cock G of the operator must be shut. Should the balanceweight A go down, then the conclusion arrived at is that the leakage is in the pipes. If, lastly,

the leakage is in the operator, the disk must be closed, so as to send piston K up to its highest point, and then shut the cock G of the operator. The lowering of rod L will then be a sign that the loss of liquid has taken place in the operator. The cocks G and G serve no other purpose bnt to admit of this Verification, and also to facilitate the charging of the apparatus.

I claim- In an apparatus for hydraulic transmission, a manipulator, Figs. 1, 2, and 4, consisting of one or more balance-weights, A, held up by lines and pulleys, or by any other means of suspension, and these balance-weights terminating at their lower end in a piston, D, having a single packing, and provided for the purpose of forcing the liquid into the pipes, this piston D being inclosed in a pump-barrel, E,

' the upper part of which communicates with a reservoir, X, filled with liquid intended to fill the pipes automatically in case of leakages, as described. 7 r

In testimony whereof I have hereto set my hand in the presence of the two subscribing witnesses.

ANTONIO MONTENEGRO.

Witnesses:

JosE MA. GUrRos, ANTONIO DE PARADA Y MONTENEGRO. 

